No, not the Blueberry or Apple
type, but Pi, the 16th letter of the Greek Alphabet Day. In mathematics, it
serves as the symbol for the ratio of the circumference of a circle to its
diameter. Pi is a transcendental number, meaning it will repeat infinitely
without ever appearing exactly the same. Pi has been calculated to over 51
billion decimal places with the use of computers. However Pi is usually
calculated to 3 digits, 3.14. Therefore, March 14 is Pi day.